76 institutions reported holding $18.6M of ODYSSEY MARINE EXPL INC COM NEW (OMEX) in SEC 13F filings for 2026-03-31. Largest institutional holders: Two Seas Capital LP ($4.7M), Old West Investment Management, LLC ($4.0M), VANGUARD CAPITAL MANAGEMENT LLC ($2.0M), CITADEL ADVISORS LLC ($1.5M), Jefferies Financial Group Inc. ($1.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Two Seas Capital LP | $4.7M | 5.6M | Added |
| 2 | Old West Investment Management, LLC | $4.0M | 4.8M | Trimmed |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $2.0M | 2.4M | New |
| 4 | CITADEL ADVISORS LLC | $1.5M | 1.8M | Added |
| 5 | Jefferies Financial Group Inc. | $1.3M | 1.5M | Hold |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $873,633 | 1.0M | Trimmed |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $505,091 | 605,362 | Added |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $451,795 | 541,721 | Added |
| 9 | JANE STREET GROUP, LLC | $374,017 | 448,461 | Added |
| 10 | BlackRock, Inc. | $326,877 | 391,938 | Trimmed |
| 11 | UBS Group AG | $303,351 | 363,730 | Added |
| 12 | GROUP ONE TRADING LLC | $230,450 | 276,319 | Trimmed |
| 13 | VANGUARD FIDUCIARY TRUST CO | $222,310 | 266,559 | New |
| 14 | STATE STREET CORP | $191,663 | 229,812 | Added |
| 15 | XTX Topco Ltd | $184,991 | 221,812 | Added |
| 16 | Foundations Investment Advisors, LLC | $153,248 | 183,750 | Trimmed |
| 17 | SLT Holdings LLC | $153,248 | 183,750 | Trimmed |
| 18 | SIMPLEX TRADING, LLC | $147,564 | 176,937 | Trimmed |
| 19 | IMC-Chicago, LLC | $145,700 | 174,700 | Trimmed |
| 20 | L. Roy Papp & Associates, LLP | $127,153 | 152,461 | Hold |
| 21 | Rockefeller Capital Management L.P. | $103,207 | 123,749 | New |
| 22 | NORTHERN TRUST CORP | $97,946 | 117,441 | Hold |
| 23 | VOISARD ASSET MANAGEMENT GROUP, INC. | $90,072 | 108,000 | Added |
| 24 | TWO SIGMA INVESTMENTS, LP | $77,245 | 92,620 | Trimmed |
| 25 | Caprock Group, LLC | $71,007 | 85,140 | Added |
Source: SEC Form 13F filings · as of 2026-03-31